提示信息数组 flatten

app/controllers/versions_controller.rb

@@ -116,7 +116,7 @@ class VersionsController < ApplicationController
         end
       else
         respond_to do |format|
-          format.html {  flash[:error] = @version.errors.full_messages.to_s
+          format.html {  flash[:error] = @version.errors.full_messages.flatten.to_s
           redirect_to settings_project_url(@project, :tab => 'versions') }
           format.js   { render :action => 'new' }
           format.api  { render_validation_errors(@version) }